GPS Under Attack: The Invisible Threat Disrupting Commercial Flights

Pilots flying commercial routes across Eastern Europe, the Middle East, and Asia are increasingly experiencing GPS disruptions during flight.

During a flight on May 21, UK Defence Secretary John Healey was flying over Estonia when the aircraft’s transponder incorrectly indicated that it was deep inside Russian territory, approximately 300 kilometers from its actual position.

The incident was caused by GPS spoofing, a technique in which radio signals imitate legitimate satellite navigation signals. Because these false signals are transmitted from the ground at high power, they can overpower the authentic GPS signals aircraft rely on.

According to data shared by aviation consultancy SkAI Data Services, approximately 100 passenger aircraft flying through the area reported incorrect positions due to spoofing activity.

The Commercial Flight Routes Most Affected by GPS Interference

Reports collected from aviation tracking services and pilots indicate that GPS interference is not randomly distributed but concentrated in specific air corridors.

These were the main commercial flight routes affected by GPS interference between January and April 2026, according to SkAI Data Services:

Myanmar Air Routes (Southeast Asia)

11,250 flights affected. The most heavily impacted region worldwide in 2026. Monitoring systems have recorded recurring interference events on regional routes crossing the country's airspace.

Persian Gulf Routes (Middle East)

7,279 flights affected. Flights connecting Europe, Asia, and Gulf nations have experienced spikes in interference, particularly following periods of heightened regional tensions.

Eastern Mediterranean Corridors

5,626 flights affected. One of the busiest international aviation regions, where interference has been linked to military activity in nearby areas.

India-Pakistan Route (South Asia)

5,111 flights affected. A corridor with a long history of GPS interference associated with military tensions between the two countries, remaining one of the most problematic routes in Asia.

Red Sea Corridors (Middle East and East Africa)

579 flights affected. A critical intercontinental route connecting Europe with Africa and Asia, where multiple GPS spoofing incidents have been detected.

When the Aircraft “Moves” Without Moving

Pilots describe several types of anomalies during these incidents. One of the most common is known as a map shift, where the aircraft’s displayed position suddenly jumps miles away from its actual location.

In other cases, onboard systems display impossible speeds or locations, such as aircraft appearing stationary when moving or traveling at unrealistic velocities.

Pilots have also reported false terrain proximity warnings, commonly appearing as alerts such as “Terrain ahead. Pull up!” even when no danger exists, creating confusion in the cockpit.

Although modern aircraft do not rely exclusively on GPS, these disruptions affect multiple interconnected systems, forcing pilots to switch to alternative navigation methods and increase manual monitoring.

The Hidden Risk: Losing Trust in Cockpit Systems

Beyond navigation, GPS is connected to numerous aircraft systems, including internal clocks, weather radar, flight management systems, and digital communications.

When GPS signals are spoofed, the issue goes beyond location accuracy. Systems begin producing conflicting information, requiring pilots to constantly cross-check multiple sources.

This has raised growing concerns within the aviation industry about the potential loss of confidence in automated systems that have been considered standard and highly reliable for decades.

The Operational Impact: More Workload, Less Efficient Routes

The consequences extend beyond technical challenges and directly affect airline operations.

When interference is detected, air traffic controllers often increase aircraft separation for safety reasons. This can prevent airlines from using optimized routes, including organized transatlantic track systems.

As a result, airlines face:

• Longer flight paths
• Increased fuel consumption
• Potential delays
• Higher workload for flight crews

In some cases, pilots must partially disable GPS-based navigation and rely on older systems, combining compasses, radar, and ground-based navigation aids.

These operational disruptions add to the challenges airlines are already facing from flight cancellations and rising costs linked to the ongoing aviation fuel crisis.